Spare Parts - Wilo SiBoost Smart Série Notice De Montage Et De Mise En Service

Fault
Dry-running protection switches off
although water is present
Dry-running protection does not
switch off, although water low
Direction of rotation signal lamp on
(not for all pump types)
You will find information on pump or control
device faults not dealt with here in the attached
documentation for the components concerned.
If the operating fault cannot be resolved, con-
tact a professional installer or the Wilo service
centre.
Installation and operating instructions Wilo-SiBoost Smart (FC) ... Helix V/... Helix VE/... Helix EXCEL
Cause
Major fluctuations of the inlet pressure Check the inlet pressure and take measures
Nominal diameter of the inlet pipe too
small
Inlet pipe installed incorrectly
Flow rate too high
Electrodes connected incorrectly or
supply pressure switch set incorrectly
Low water cut-out switch or pressure
sensor on the intake side is faulty
Electrodes connected incorrectly or
pressure for low water cut-out switch
set incorrectly
Low water cut-out switch or pressure
sensor on the intake side is faulty
Incorrect direction of rotation of the
motors
Remedy
to stabilise the inlet pressure if necessary
(e.g. pressure reducers)
Check the inlet pipe and increase the cross-
section of the inlet pipe if necessary
Check the inlet pipe and change the pipe
routing if necessary
Check the pump data and default values and
correct if necessary
Check the installation or setting and
correct it
Check and replace the low water switch or
pressure sensor as necessary
Check the installation or setting and
correct it
Check and replace the low water switch or
pressure sensor as necessary
Check direction of rotation and correct by
changing over phases if necessary

11 Spare parts

Spare parts or repairs may be ordered from local
specialist technicians and/or the Wilo Service.
To avoid queries and incorrect orders, all data from
the rating plate must be specified with every
order.
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